milliepops
Wears headscarf aggressively
I think its impossible to give a clear answer on a forum. We all know our own horses (I know from his facial expression if he understands from my reaction if he did something wrong) and we manage our own risks.
Ideally we wouldn't smack / scare or intentionally cause harm unless it was in the interests of removing a greater risk. We are on this forum because we care about our horses and want to do our best for them. Sometimes that means being clear about boundaries. If these are well established early on then the need for reinforcement of rules should be relatively easy to deliver.
In the real world, some of us are brave and kind enough to give a second chance to a horse who didn't enjoy the best education and we need to be able to clearly and effectively communicate when a line has been crossed. As long as this is done with the best interests at heart, then it can't be judged at a distance on a forum.
^^ good post
Also agree with MoC, when horses go to properly bite each other, they bite HARD. not something you want to mess about with. I know someone who got on the receiving end of a bite intended for another horse and she needed a skin graft, it was a serious injury.